Yup, it's a boat, a very er, grounded boat.
I have to laugh at poor Simon sometimes. He's so used to me pointing places and him hopping up that we were walking towards the boat and he immediately was like "Oh, you're going to want me to sit in the boat, right?"
So, up and over into the boat he goes before I even get there -- well, there's one little rotted out four inch plank in the front of it there that he's standing on. I don't know how he did it, but he managed to cling on to it and wiggle his way around to lean over the edge.
Sheesh, good dog, but I think I'll be a lot more careful about where I point and say "Yeah, I think that would be a neat shot with him!" to the person I'm walking with.